Imitation wood-carving.



i m6."bbapsmmf COATING 0R PLASTIC UNITED STATES Patented December 13,1904.

PATENT I OFFICE.

JOHN WALTER, OF DETROIT, MICHIGAN.

IMITATION WOOD-CARVING.

SPECIFICATION forming part of Letters Patent No. 777,647, dated December13, 1904.

Application filed February 29, 1904.

application for Letters Patent, Serial No.

195,904. In this last-mentioned application I have described the makingof a mold of rubber by means of which I am enabled to reproduce from awooden pattern a mold suitable to reproduce the article of plasticmaterial with the minutest detail of the work, together with the grainof the wood itself.

The present application relates to a composition of matter and tocertain treatment required after the article is cast in the mold toimitate the carving so closely that the eye could not tell thedifference. To this endI first prepare the following composition: 1 takelaster-of- )aris or preferably what is known as Keon ,1 cement,and putsuch colorin matter 1n 0 1 as W1 give it the exact 00 or of the woodfrom which the pattern is made or which it is desired to have. Then Imake this into a paste with the necessary amount of water in whichpreviously dextr' has been 1ssolved to about forty per cent. of theweight of the water. This composition I pour into the rubber mold madefrom the wood-carving as described in the application referred to aboveand then while yet fluid reinforce the Serial No. 195,903. (Nospecimens.) a a a outer edges and back with Manila fiber. ter thecomposition has set a 'e 1e article out of the mold and dry it in atemperature of about 100 Fahrenheit. After it is thoroughly timbth'earticle into a heated solution composed of about thirtyve per cent.rosin, thirty per cent. linseed-oil and thirty -five per cent. turentine an ieated to about 150 Fahrenheit and let the solution soak weinto "e fiticle. I then take the article out and place it in an ovenheated to abouWand let it remain until the so utlon as een completelyabsorbed. After taking it out of the oven the article is first given acoat of shellac, and, if desired, it

is then treated with a wood-filler the same as wood is treated toenhance the color of the grain, and then finally the article ispolished.

Having thus fully described my invention, what I claim is Theherein-described process of manufacturing imitation WOOdcarvings fromplastic material, which consists in bringing together into a mixturecement and water in which dextrin has been previously dissolved, thenmolding the mixture in a suitable mold made from the pattern, drying themolded article,

then immersing it into a heated solution of rosin, turpentine andlinseed-oil, then baking it in an oven, then giving it a'coating ofshe]- lac aud finally polishing it.

In testimony whereof I ailix my signature in presence of two witnesses.

. JOHN WALTER. Witnesses:

SYLVIA TRILEK, Orro F. BARTHEL.

